115800920 has 16 divisors (see below), whose sum is σ = 260552160. Its totient is φ = 46320352.

The previous prime is 115800917. The next prime is 115800941. The reversal of 115800920 is 29008511.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 115800920.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1447472 + ... + 1447551.

It is an arithmetic number, because the mean of its divisors is an integer number (16284510).

Almost surely, 2^115800920 is an apocalyptic number.

115800920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115800920 is an abundant number, since it is smaller than the sum of its proper divisors (144751240).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115800920 is a wasteful number, since it uses less digits than its factorization.

115800920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2895034 (or 2895030 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 115800920 is about 10761.0835885611. The cubic root of 115800920 is about 487.4207383738.

The spelling of 115800920 in words is "one hundred fifteen million, eight hundred thousand, nine hundred twenty".